Home / 105,664.47-145,699.88-67,363.35

Finding the Fourth Proportional to 105,664.47, 145,699.88 and 67,363.35

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Solution

The fourth proportional to 105,664.47, 145,699.88 and 67,363.35 is: 92,886.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,664.47 : 145,699.88 = 67,363.35 : x
  2. Step 2: Convert to fraction form
    105,664.47/145,699.88 = 67,363.35/x
  3. Step 3: Cross multiply
    105,664.47x = 145,699.88 × 67,363.35
  4. Step 4: Simplify right side
    105,664.47x = 9,814,831,674.58
  5. Step 5: Solve for x
    x = 9,814,831,674.58/105,664.47
  6. Step 6: Final answer
    x = 92,886.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.